Film-rewinder.



D. HBNSEL.

FILM REWINDBR. APPLICATION FILED APB. 2s, 1912.

Patented Jam?, 1913.

2 SHEETS-SHEBT 1.

5mm/tofu v G Holly,

D. HENSEL.

' FILM RBWINDER.

APPLIGATIQN FILED APR. ze, 1912.-

`1,049,859. Patented Jan.;7,1913.

z SHEETS-SHEET 2. l.

25 f a iframe adapted to receive-an empty reel UNUSED, srarnsf PATENT orrion nnitrivisi.Hiiivsiin` or YORK, lPEN.Nsbirriveinte;-f i" FILM-REWINDER. l

1,049,859. A ,Specification of'l Application med April 2e,

To all whomz'tmay concern:

Be it known that I, DENNIS HENSEL, va citizen lof the'llni'ted States, residingv at York, inthe countyof York andy State of Pennsylvania, lhave'i'nven'tfed new and useful Improvements in Film-Rewinders, of which the following is a specification.

The invention lrelates `to motion picture film rewindino; machines' and'v has tor` an object'to provide a device for rewinding films on the primary reel to prepare the same for a. -reXhibition' of the pictures thereon. i r` My inventionembodies among other fea tures a device in which the friction produced when the films are rewound, will be auto- `matic proportional to the speed at which the iilrns 'are rewound, means forautomatically causing the reeling operation of the film to cease i-n case the film should break, means for adjusting the tension of the nlm during the rewinding operation and means for automatically stopping the k'machine lwhen the film has been entirely rewound.

ff For the purpose mentioned, use is made of and the reel containingy the film whichis to be rewound upon-the empty reel, means tor -rewindiirg the film on the' full or secondary,

reel onto lthe empty or primary reel, means' for controlling the tension produced in Winding the' film uponl the primary reel, rneans for stopping, thet-4 rewinding of the iilm when the samevis broken, a *platform` mounted to swing on' the said frame and adapted to receive thereon the broke-n ends of thefilin for the purpose of reconnecting the' same and means-for stopping the rewinding operationof t-he film when the last portion. .of the film of: the secondary reel has been wound upon the-primary reel. f

Referenceis tobehadito the 'accompany-.

ing drawings constitutingva.part`jof this"4 l specification, in'Which-similar'characters of f 5,415. inv Fig. 4.

reerence denote corresponding parts in all the views and in Whic -f Figure 1 is a front elevation of my device. Fig.` 2 is a. rear elevation of my device. Fig, v3 is a`- side elevation,C parts of thev primary yreel being broken away `to disclose the underlying-'structure-1- Fig'. Il` is anfenlarged lfragmentary side elevation of a portion of yhestop mechanism 'of my device. Fig.- 5 is a horizontal sectio al lview takenon theilfi-ne ing a slotted head `28 segured to the lo -zeferring morey particularly to theafliewssu Letters Patent. Patented Jain'?, 1913. 1912. Serial No. 693,360. I y

I employ a Ti-shaped :trame lOsecured upon a cabinet l1, containing an electrical motor or other suitable power-producing',mediurni Egtelxiding upwardly adjacent one side oit the frame 10 is a plate l2, adapted Ato4 lie fl'at against awall or other support yfor holdingthe machine iirmly for use.v A shaft 13 is journaled on the frame 10 and keyed thereto is a` grooved pulley Vlt, having a belt passed Iaround the same andy having connection with a suitable motor Lmounted Withinthe cabinet 11. A smaller 16 is keyed to the shaft 13 being also passed around a grooved pulley 18 keyedto a shaft 19 journaled on the frame 10 andhaving a handle 20 connected to the outer end thereof so that if for any reason the motor in the cabinet 11 rei-'uses to operate, the handle 2O can be' operated to manually aetuate the machine.

Journaled on the shaft 13, between the ends thereof, is a hearing 21 having a plate 22 integrally formed thereon, the said plate hereinafter called a priipary reel and desig-- nated by the numeral 26." Extending dowiu wardly fpom the bearing 21 is a rod 27hf end Vthereof with the shaft-.i9 ext-ending througlrtheslot of the said head sothat the swingingmovenient of the plate 22 will limitedby the length of thel slot in the head' 28, whichwill swing, with the shaft was a center when theplate 22 -is swung relatively to the 'shaft 15,'the rod 27, havingthe headV 28 thereon, being rigid with the bearing'Ql, formed integrally with the plate 22 asin/en tioned heretofore.y Formed on the upper end of the bearing 2l is a vflange 29-adapted to' engage the lower end oi .aVrodrBO securedto a socket member 31, pivotallty mounted on the trarne l() and having extended upwardly therefrom a'rod32, provided with an veye 33 having aliook 'l 'of a' rod groove df p ullyf. and a belt 17xis. passed around the pulley 16, the-saidlielt,

nere-v i 'i o lever 42, having a locking bar 43 pivotallyl mounted-thereon with the free end of the locking bar engaging the cam 37 and adapted' to normally seat against a cam lug 44,

l' A formed von the cam 37, the-mentioned cam being providedwith a out out portion 45 and a cam lug 46 to limit the turning movement of the cam by being engaged by the lookin bar 43`a`s will be hereinafter more fully isclosed. A spring 47 is secured to an arm 48, of. the cut out lever 42, an end ofthe said spring being connected to the locking bar 43 tonormally retain the lookin bar in engagement with the cam lug 44. ne end of`a contractile spring 49 is connectedv to a pin 50, rigidly secured to the frame 10, and the other end of .thespring 49 is connected to the arm 48 of the cut out lever 42.

The upper end of the frame 10 terminates in forked ortions 51 and journaled thereon is aspind e 52 adapted to receive a reel 53, which will be hereinafter known as the second'ary reel. Keyed'to the spindle 52 is a grooved pulley 54 and keyed to the said spindle adjacent the grooved pulley 54 is a smaller grooved pulle "55, a flexible brake band 56 being passed-around the smaller ooved pulle 55 with the ends of the rake band a ustably secured in a. socket 57 secured toa bearing 58 rigidl mounted on the frame 10. .A main brake and 59 is secured to the bearing 58 and asses around the larger grooved pulley 54, t e said brake band 59 being then passed downwardly and around the'grooved ulley 60 keyed to th'e'- shaft 13, the said bra e band being then extended upwardly and provided at an end thereof with an eye 61 for pivotal connection with the cut out lever 42, it being un- 4 derstood that the 4brake band 59 constitutes the main brake band and the brake band 56 constitutes the auxiliary' brake band, the main 4brake band 59 being adapted to normally engage the pulleys 54 and 60 in a loose manner. Connected to the out out lever 42 is a controlling rod 62 extending downwardly through an-opening in the cover vof the cabinet 11, the said controlling rod beingl connected to the switch for fthe purpose ofl operating the same to sto or start the. motor within the cabinet.

ow assuming that the arts of my devicev are Ain the position disc osed in Figs.v 1, 2 andf4 andthat the secondary reel 53 is mounted -on the Aspindle 52, the said seconday reel having woundtherebn a film roll with the end of the film roll connected to theprimaryreel26 mounted on the spindle 25 and upon which it is desired to wind the film roll, when the motor in the cabinet 11 is started, the belt 15 having connection with the motor and passing over the ulley 14, will impart rotation to the' spin le 25 through'the medium of the toothed wheels '23.and 24.

up on the primary reel, and 4unwound from 'the secondary reel, the tension of the film roll between the reels will 'produce an upward pull on the free end of the plate 22, thus. retaining the late in substantially horizontal position. employing the auxiliary brake band 56, the ooved pulle 55 if the speed ofthe spin le 52 shoul materially increase for lany reason, the increase in speed will cause the brake band 56 to engage the pulley 55 with greater frictional force as will be readily understood, thus reducin the speed of `the spindle 52 to its norma operation, it being readily discernible with any increase in the speed of the v pulley 55 will cause the brake band 56 tir-exert greater frictional force on the pulley, in proportion to the increase of speed of the pulley. Now if the film, as the same is being rewound from the secondary reel onto-the primary reel, should suddenly break, the upward pulling effect of the lm will be discontinued and consequently the free end of the plate 22, having the weight of the primary reel 26 thereon, will gravitationally move downward, the downward movement of the said plate being limited by the head 28 having the slot therein and throu h which is extended the shaft ictionally engaging 19. As the pate 22 moves downwardly, the

rod 29 will actuate the lower end of the' rod 30, thus actuating the rod 32 in the opposite direction and exerting a pull on the rod 35, suilicient to disengage the locking bar 43 from the cam lug 44, this being accomplished=by a vslight turning movement of the cam 37, due to the downward pull of the rod 35. At the moment that the locking bar 43 is released from engagement with the cani lug 44, the contractile pull of the spring 49 will swing a portion of the cut out lever 42 upwardly so that the upper end of the locking bar 43 will engage t Now as the outer portion of the 4cut out lever 42 is moved upwardly, the main brake band 59, which has an end thereof secured to the cut out lever 42 and has the other end thereof securedto the frame 10 after lbei assed around the pulleys 54 and 60, wi e moved into greater frictional engagement with the, pulleys 54 and 60 thus overcoming the rotation of the pulleys and causing the same tol sto At the same moment that the outerportlon of .the cut out lever 42- moves upwardly, an upward pull is exerted on the controlling rod 62 having cone cam lug 46.

nection with the lever 42, switch within the cabinet geachte thus operating .the ll to stop the motor within the cabinet and the entire device will then befjin 'inoperative position, ythe primary and secondary reels being prevented from rotating by the main brake band 59 in close frictional engagement with the pulleys y 60 and' 54 respectlvely and the main operating power of the machine willy also be in inoperative position, dueto the action of the controlling rod '62, operating the switch withinthecabinet to stop the motor within the'cabinet.

f Mounted toswing on the frame 10 is a platform 63, the said platforml being adapted tonormally fold against the frame and movable into a horizontal position so that p when the lm is broken, the broken ends off the film can be placed upon the platform 63 and spliced or reconnected in the usual ymanner. After this has been accomplished,

the platform 63 is swung into vertical or folded position and by exerting a downward pressure on the cut out lever 42,v the controlling rod 62 will be operated to restart the motor within the cabinet` 1l, the locking-bar 43 will be moved to resume its normal position, 1n engagement with the cam lug 44 and the tension on the main brake band 59 will be released, thus permitting a rotation of the pulleys 54 and 60 and consequently permitting the spindles 52 and 25 to rotate respectively, the plate 22 being again moved to substantially horizontal position when the iilm roll commences to. wind up on the primary reel 26 and unwind on 'the secondary reel 53.

It willl be understood that 'if the film should not break while the same is being rewound,'when the entire lm has been wound upon the primary reel, the machine will be automatically stopped in the manner described, in 'view of the fact that when the l last end of the film leaves the secondary reel,

j downwardly and actuating the primary reel, a

y ,when the vthe upward tension of the ilm, p primaryv -and secondary reels between t-he will be re` 22 to swing stop mechanism in the same manner that the mentioned mechanism would operate. when a break occurs in the film.

I claim 1. A film rewinder comprising a frame, a plate mounted to swing gravitationally on the said frame, a spindle mounted to turnon the said-plate and adapted yto receive a. second spindle mounted on the said frame and adapted to receive a secondary reelcontaining a film, the said plate being adapted to swing gravitationally said lm has been wound upon the said primary reel, means for imparting rotation to the irst-mentioned spindle, a cutleased, thus causing the plate' out lever, a brake ba-nd connected to the said`l cutout 'lever and a connection between thee] taining a film,

"the said secondary reel has been said plate and the said cut out lever for stopping the rotation of the first mentioned spindle and applying the said brake band when the said lin has been wound upon the said primary reel togravitationally swing the said plate.

2. A film rewinder comprising a frame, a plate mounted to swing on the said frame, a spindle mounted to turn on the said plate and adapted to receive a primary reel, a second spindle. mounted on the said frame and adapted to receive a secondary reel conthel said plate being adapted to swing gravitationally whenthe film on wound upon the said primary reel, means for imparting rotation to the lfirst-mentioned spindle, a cut-out lever and a'connection between the 'said plate and the said cut-out lever for stopping the rotation of.therst-mentioned" spindle when the said film has ,been wound tlereon to gravitationally swing the said p ate.

3. A ilm rewinder comprising a frame, a plate mounted to swing on the said frame, a-spindle mounted to turn on the said plate and adapted to receive a primary reel, a second spindle mounted on the said frame and adapted to receive asecondary ing a ilm to be Wound upon t-he said primary reel, the said plate being adapted to swing when the said film has been wound upon the said primary reel, means for imparting rotation to the,- first-mentioned spindle, means for stopping the rotation of the first-mentioned spindle when the said' plate is swung relatively to the said frame and means for limiting the swinging movement of the said plate.

4. A ilm rewinder comprising a frame, a spindle mounted t-o turn and to swing on the. said frame and adapted to receive a primary, reel, a second spindle mounted on the said frame and adapted to receive a secondary reel containing a film, the said first-men tioned spindle'being adapted to swingl relareel containtively to the said frame when the lm on the said secondary reel has been unwound therelfrom and wound onto the said primary reel, means `for imparting rotation to the firstmentioned spindle, a brake band and means for operating the said brake band and stopping the rotation of the tirst-mentioned spindle when the same is swung relatively to the said frame.

5s 'A lm rewinder comprising a frame, a spindle mounted to swing and to turn on the said frame and adaptedto receive a primary reela second spindle mounted on the said frame and adapted.to receive a seconde ary reel fntaining a lm, the said lm. being unwindable from the said secondary reel and onto the said primary reel, abrake band and means for moving the said 'brake band into braln'ngpositionvwhen the firstmentioned spindleswings on tli'e frame, the

said first-mentioned spindle being adapted to swing on the frame when the film has been unwound from the said secondary reel and onto the said primary reel.

6. A film rewinder comprising a frame, a plate gravitationally mounted on the said frame, a spindle mounted on the said plate and adapted to receive a primary reel, a second spindle mounted on the said frame and adapted to receive a secondary reel, means for imparting rotation to the firstmentionedspindle to unwind the -fllm from the said secondary reel and onto the said primary reel, the said plate being movable gravitationally when the said film has been unwound from the said secondary reel and means for stopping the rotation of the firstmentioned spindle when the said plate moves gravitationally.

7. A film rewinder comprising a frame, a plate `gravitationally mounted on the said frame, a spindle for receiving a primary reel andy mounted on the said plate, a second spindle mounted on the said frame to receivev a secondary reely tlie-said plate being movable gravitationally` when the film has been Wound from the secondary reel andkl onto the primary reel, a brake band and a voonnection between the said`plate andfthe( said brake band for moving the Said brake' l i band into braking position when. the saidv plate is moved gravitationally.

8. 'A film rewinder comprising a frameya,A z

plate gravitationally mounted on the said frame, a spindle mounted to move gravita#- tionally with the said plate and adapted to receive a primary reel, a second spindle journal'ed on the saidframe and adaptedy toreceive a secondary reel, a brake band,

means for impart-ing rot-ation to ,the. f irst DEivms HENSEL.

Witnesses:

FRED. SoHULzE, G. P. KOCH.. 

